public static void main(String[] args) throws Exception {
// Configure SSL.
final SslContext sslCtx;
if (SSL) {
sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
} else {
sslCtx = null;
}
EventLoopGroup group = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(group)
.channel(NioSocketChannel.class)
.handler(
new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline p = ch.pipeline();
if (sslCtx != null) {
p.addLast(sslCtx.newHandler(ch.alloc(), HOST, PORT));
}
p.addLast(new DiscardClientHandler());
}
});
// Make the connection attempt.
ChannelFuture f = b.connect(HOST, PORT).sync();
// Wait until the connection is closed.
f.channel().closeFuture().sync();
} finally {
group.shutdownGracefully();
}
}
public static void main(String[] args) throws Exception {
// Configure SSL.
final SslContext sslCtx;
if (SSL) {
SelfSignedCertificate ssc = new SelfSignedCertificate();
sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
} else {
sslCtx = null;
}
EventLoopGroup bossGroup = new NioEventLoopGroup(1);
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
ServerBootstrap b = new ServerBootstrap();
b.group(bossGroup, workerGroup)
.channel(NioServerSocketChannel.class)
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(new FactorialServerInitializer(sslCtx));
b.bind(PORT).sync().channel().closeFuture().sync();
} finally {
bossGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
}
}
public void start(ServerTransportListener listener) {
Preconditions.checkState(this.listener == null, "Handler already registered");
this.listener = listener;
// Create the Netty handler for the pipeline.
final NettyServerHandler grpcHandler = createHandler(listener);
// Notify when the channel closes.
channel
.closeFuture()
.addListener(
new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
notifyTerminated(grpcHandler.connectionError());
}
});
ChannelHandler handler = grpcHandler;
if (sslContext != null) {
SSLEngine sslEngine = sslContext.newEngine(channel.alloc());
handler = ProtocolNegotiators.serverTls(sslEngine, grpcHandler);
}
channel.pipeline().addLast(handler);
}
public static void newHttpClientBootstrap(String url, ChannelHandler handler) throws Exception {
URI uri = new URI(url);
String scheme = uri.getScheme() == null ? "http" : uri.getScheme();
String host = uri.getHost() == null ? "127.0.0.1" : uri.getHost();
int port = uri.getPort();
if (port == -1) {
if ("http".equalsIgnoreCase(scheme)) {
port = 80;
} else if ("https".equalsIgnoreCase(scheme)) {
port = 443;
}
}
if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) {
System.err.println("Only HTTP(S) is supported.");
return;
}
// Configure SSL context if necessary.
final boolean ssl = "https".equalsIgnoreCase(scheme);
final SslContext sslCtx;
if (ssl) {
sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
} else {
sslCtx = null;
}
// Configure the client.
EventLoopGroup group = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(group)
.channel(NioSocketChannel.class)
.handler(new HttpDownloadertInitializer(sslCtx, handler));
// Make the connection attempt.
Channel ch = b.connect(host, port).sync().channel();
// Prepare the HTTP request.
HttpRequest request =
new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, uri.getRawPath());
HttpHeaders headers = request.headers();
headers.set(HttpHeaders.Names.HOST, host);
headers.set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
headers.set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
// Set some example cookies.
headers.set(
HttpHeaders.Names.COOKIE,
ClientCookieEncoder.encode(new DefaultCookie("my-cookie", "foo")));
ch.writeAndFlush(request);
// Wait for the server to close the connection.
ch.closeFuture().sync();
Thread.sleep(1000);
} finally {
// Shut down executor threads to exit.
group.shutdownGracefully();
}
}
@Override
public void initChannel(SocketChannel ch) {
ChannelPipeline p = ch.pipeline();
if (sslCtx != null) {
p.addLast(sslCtx.newHandler(ch.alloc()));
}
p.addLast(new HttpClientCodec());
p.addLast(new HttpContentDecompressor());
p.addLast(handler);
}
@Override
public void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
if (sslCtx != null) {
pipeline.addLast(sslCtx.newHandler(ch.alloc()));
}
pipeline.addLast(new HttpServerCodec());
pipeline.addLast(new HttpObjectAggregator(65536));
pipeline.addLast(new WebSocketServerHandler());
}
private SslContext getSslContext() {
SslContext sslCtx;
if (useSsl) {
SelfSignedCertificate ssc;
try {
ssc = new SelfSignedCertificate(host);
sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
} catch (CertificateException | SSLException e) {
e.printStackTrace();
sslCtx = null;
}
} else {
sslCtx = null;
}
return sslCtx;
}
@Override
public void initChannel(SocketChannel ch) {
ChannelPipeline pipeline = ch.pipeline();
if (sslCtx != null) {
pipeline.addLast("ssl", sslCtx.newHandler(ch.alloc()));
}
pipeline.addLast("codec", new HttpClientCodec());
// Remove the following line if you don't want automatic content decompression.
pipeline.addLast("inflater", new HttpContentDecompressor());
// to be used since huge file transfer
pipeline.addLast("chunkedWriter", new ChunkedWriteHandler());
pipeline.addLast("handler", new HttpUploadClientHandler());
}
public static void main(String[] args) throws Exception {
// Configure SSL.
final SslContext sslCtx;
if (SSL) {
SelfSignedCertificate ssc = new SelfSignedCertificate();
sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
} else {
sslCtx = null;
}
// Configure the server.
EventLoopGroup bossGroup = new NioEventLoopGroup(1);
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
ServerBootstrap b = new ServerBootstrap();
b.group(bossGroup, workerGroup)
.channel(NioServerSocketChannel.class)
.option(ChannelOption.SO_BACKLOG, 100)
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(
new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline p = ch.pipeline();
if (sslCtx != null) {
p.addLast(sslCtx.newHandler(ch.alloc()));
}
// p.addLast(new LoggingHandler(LogLevel.INFO));
p.addLast(new EchoServerHandler());
}
});
// Start the server.
ChannelFuture f = b.bind(PORT).sync();
// Wait until the server socket is closed.
f.channel().closeFuture().sync();
} finally {
// Shut down all event loops to terminate all threads.
bossGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
}
}
public static void main(String[] args) throws Exception {
// Configure SSL.
final SslContext sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
EventLoopGroup group = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(group)
.channel(NioSocketChannel.class)
.handler(new SecureChatClientInitializer(sslCtx));
// Start the connection attempt.
Channel ch = b.connect(HOST, PORT).sync().channel();
// Read commands from the stdin.
ChannelFuture lastWriteFuture = null;
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
for (; ; ) {
String line = in.readLine();
if (line == null) {
break;
}
// Sends the received line to the server.
lastWriteFuture = ch.writeAndFlush(line + "\r\n");
// If user typed the 'bye' command, wait until the server closes
// the connection.
if ("bye".equals(line.toLowerCase())) {
ch.closeFuture().sync();
break;
}
}
// Wait until all messages are flushed before closing the channel.
if (lastWriteFuture != null) {
lastWriteFuture.sync();
}
} finally {
// The connection is closed automatically on shutdown.
group.shutdownGracefully();
}
}
@Override
public void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
// Add SSL handler first to encrypt and decrypt everything.
// In this example, we use a bogus certificate in the server side
// and accept any invalid certificates in the client side.
// You will need something more complicated to identify both
// and server in the real world.
pipeline.addLast(sslCtx.newHandler(ch.alloc()));
// On top of the SSL handler, add the text line codec.
pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
pipeline.addLast(new StringDecoder());
pipeline.addLast(new StringEncoder());
// and then business logic.
pipeline.addLast(new SecureChatServerHandler());
}
@Override
protected void initChannel(SocketChannel arg0) {
CorsConfig corsConfig =
CorsConfig.withAnyOrigin()
.allowedRequestHeaders("X-Requested-With", "Content-Type", "Content-Length")
.allowedRequestMethods(
HttpMethod.GET,
HttpMethod.POST,
HttpMethod.PUT,
HttpMethod.DELETE,
HttpMethod.OPTIONS)
.build();
ChannelPipeline p = arg0.pipeline();
if (sslCtx != null) {
p.addLast(sslCtx.newHandler(arg0.alloc()));
}
p.addLast("decoder", new HttpRequestDecoder());
p.addLast("encoder", new HttpResponseEncoder());
p.addLast(new CorsHandler(corsConfig));
p.addLast(new EduMsgNettyServerHandler());
}
public static void main(String[] args) throws SSLException, InterruptedException {
// Configure SSL.git
final SslContext sslCtx;
if (SSL) {
sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
} else {
sslCtx = null;
}
// Configure the client.
EventLoopGroup group = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(group)
.channel(NioSocketChannel.class)
.option(ChannelOption.TCP_NODELAY, true)
.handler(
new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(@NotNull SocketChannel ch) {
ChannelPipeline p = ch.pipeline();
if (sslCtx != null) {
p.addLast(sslCtx.newHandler(ch.alloc(), HOST, PORT));
}
// p.addLast(new LoggingHandler(LogLevel.INFO));
p.addLast(new MyChannelInboundHandler());
}
});
// Start the client.
ChannelFuture f = b.connect(HOST, PORT).sync();
// Wait until the connection is closed.
f.channel().closeFuture().sync();
} finally {
// Shut down the event loop to terminate all threads.
group.shutdownGracefully();
}
}
public static void main(String[] args) throws Exception {
// Configure SSL.
final SslContext sslCtx;
if (SSL) {
SelfSignedCertificate ssc = new SelfSignedCertificate();
sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
} else {
sslCtx = null;
}
EventLoopGroup bossGroup = new NioEventLoopGroup(1);
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
ServerBootstrap b = new ServerBootstrap();
b.group(bossGroup, workerGroup)
.channel(NioServerSocketChannel.class)
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(
new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline p = ch.pipeline();
if (sslCtx != null) {
p.addLast(sslCtx.newHandler(ch.alloc()));
}
p.addLast(
new ObjectEncoder(),
new ObjectDecoder(ClassResolvers.cacheDisabled(null)),
new ObjectEchoServerHandler());
}
});
// Bind and start to accept incoming connections.
b.bind(PORT).sync().channel().closeFuture().sync();
} finally {
bossGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
}
}
@Override
protected void initChannel(Channel channel) throws Exception {
SslContext sslContext;
SSLParameters sslParams = new SSLParameters();
if (redisURI.isVerifyPeer()) {
sslContext = SslContext.newClientContext(SslProvider.JDK);
if (JavaRuntime.AT_LEAST_JDK_7) {
sslParams.setEndpointIdentificationAlgorithm("HTTPS");
}
} else {
sslContext =
SslContext.newClientContext(SslProvider.JDK, InsecureTrustManagerFactory.INSTANCE);
}
SSLEngine sslEngine =
sslContext.newEngine(channel.alloc(), redisURI.getHost(), redisURI.getPort());
sslEngine.setSSLParameters(sslParams);
removeIfExists(channel.pipeline(), SslHandler.class);
if (channel.pipeline().get("first") == null) {
channel
.pipeline()
.addFirst(
"first",
new ChannelDuplexHandler() {
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
eventBus.publish(new ConnectedEvent(local(ctx), remote(ctx)));
super.channelActive(ctx);
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
eventBus.publish(new DisconnectedEvent(local(ctx), remote(ctx)));
super.channelInactive(ctx);
}
});
}
SslHandler sslHandler = new SslHandler(sslEngine, redisURI.isStartTls());
channel.pipeline().addLast(sslHandler);
if (channel.pipeline().get("channelActivator") == null) {
channel
.pipeline()
.addLast(
"channelActivator",
new RedisChannelInitializerImpl() {
private Command<?, ?, ?> pingCommand;
@Override
public Future<Boolean> channelInitialized() {
return initializedFuture;
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
initializedFuture = SettableFuture.create();
pingCommand = null;
super.channelInactive(ctx);
}
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
if (initializedFuture.isDone()) {
super.channelActive(ctx);
}
}
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt)
throws Exception {
if (evt instanceof SslHandshakeCompletionEvent && !initializedFuture.isDone()) {
SslHandshakeCompletionEvent event = (SslHandshakeCompletionEvent) evt;
if (event.isSuccess()) {
if (pingBeforeActivate) {
pingCommand = INITIALIZING_CMD_BUILDER.ping();
pingBeforeActivate(pingCommand, initializedFuture, ctx, handlers);
} else {
ctx.fireChannelActive();
}
} else {
initializedFuture.setException(event.cause());
}
}
if (evt instanceof ConnectionEvents.Close) {
if (ctx.channel().isOpen()) {
ctx.channel().close();
}
}
if (evt instanceof ConnectionEvents.Activated) {
if (!initializedFuture.isDone()) {
initializedFuture.set(true);
eventBus.publish(new ConnectionActivatedEvent(local(ctx), remote(ctx)));
}
}
super.userEventTriggered(ctx, evt);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
throws Exception {
if (!initializedFuture.isDone()) {
initializedFuture.setException(cause);
}
super.exceptionCaught(ctx, cause);
}
});
}
for (ChannelHandler handler : handlers) {
removeIfExists(channel.pipeline(), handler.getClass());
channel.pipeline().addLast(handler);
}
}
